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Best Roof Sealants for Leak Repairs in 2024: Reviews and Costs

Posted on May 12, 2023

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Best Roof Sealants for Leak Repairs in 2024: Reviews and Costs

Your roof is your home’s first line of defense against the elements, and a leaky roof can cause significant damage to your property. Whether you’re dealing with a small leak or a major issue, addressing the problem as soon as possible is crucial to prevent further damage. That’s where roof sealants come in. Roof sealants provide a protective layer that prevents water and moisture from seeping into your roof and causing damage. In this blog post, we’ll take a deep dive into the best roof sealants for leak repairs in 2024. 

In this blog post, we’ll provide you with a comprehensive overview of the top roof sealant products on the market, along with their cost and customer reviews. 

#1 Waterproof Sealant by Liquid Rubber

Waterproof Sealant by Liquid Rubber
Waterproof Sealant by Liquid Rubber

Liquid Rubber’s Waterproof Sealant is one of the best roof sealants available on the market. This is an all-purpose roof sealant that you can use on various roofs, such as flat roofs, metal roofs, and sloped roofs, and even on other surfaces that need protection, such as the basement of your home. Whether you own a residential or commercial property, this water-based roof sealant can come in handy. 

This sealant is UV-resistant, eco-friendly, and flexible, which allows it to expand and contract with changes in temperature without cracking or peeling. Liquid Rubber products also come with a 10-year warranty, guaranteeing this sealant’s durability and effectiveness in protecting your roof from leaks.


Though this is a multi-use product that pretty much ticks all the boxes of what you could want in a sealant, you should consider its price before purchasing. You can purchase one gallon of this roofing sealant at $69.95. There is also a five-gallon option available, priced at $199. 


As noted above, this is one of the best sealants for a roof that you can choose. It has received powerful reviews on several sites, and it currently has a 4.4-star rating on Amazon and over 3,000 customer ratings on this product.  

#2 Gorilla Waterproof Patch & Seal Tape by Gorilla Glue 

best roof sealants for leak
Gorilla Waterproof Patch & Seal Tape by Gorilla Glue 

Gorilla Waterproof Patch & Seal Tape is an effective option to protect your roof from damaging roof leaks. Unlike a liquid solution, this product comes in tape rolls up to 10 feet long, and provides a thick adhesive that is moisture and UV resistant.  

This roof sealant works like a patch and is ideal if you’re dealing with a small leak requiring a quick and easy fix. The tape comes in four-inch wide strips, providing you with a sufficient surface area to cover small gaps, and it effectively adheres to almost any roofing surface, making it a versatile option for different types of roofs. You can also easily use this roof sealant in wet areas where a leak has already started.  


This is one of the most affordable roof sealants featured on our list today. One pack of this sealant tape is available in the range of $12-$15, depending on where you purchase the product. Other options include a two-pack and a four-pack variant. 


This is one of the best roof sealants for leaks and is used by numerous homeowners throughout the country. This sealant is currently the best seller on Amazon under the butyl category. It has a rating of 4.4 and has over 16,000 reviews.  

#3 Liquid Rubber Sealant by Rubberseal

Liquid Rubber Sealant by Rubberseal
Liquid Rubber Sealant by Rubberseal

Rubberseal’s Liquid Rubber Waterproofing sealant is a popular choice for protecting your roof against roof leaks. 

This sealant provides a durable and moisture-resistant protective membrane that prevents standing water from penetrating the roof. Its high solar reflectivity also helps keep the roof cool and protected during the hot summer months. Rubberseal offers this sealant in different color options, including white, black, light gray, and dark gray, providing you with various choices to match your preferred aesthetic. If you have a flat roof that receives a lot of sunlight, you should consider a lighter color roof sealant for your roof, like this one.  


The cost of Rubberseal’s waterproofing sealant varies depending on the quantity and packaging of the product. On average, a one-gallon container of the sealant can cost around $80 to $85, while a five-gallon container can range from $250 to $350. It is also available in an extra strong version. 


Rubberseal’s Liquid Rubber Sealant has received a positive rating of 4.5 stars on Amazon, with several homeowners referring to this product as the best roof sealant for flat 

roofs. It also has a rating of 4.4 stars on Home Depot. You can buy it from any of these platforms.

#4 Henry® Roof Sealant

Henry Roof Sealant
Henry Roof Sealant

Henry is a popular manufacturer of some of the best flat roof coatings, be it synthetic or acrylic. The company is not far behind when it comes to making the best roof sealants for leaks. 

Henry’s 289 White Roof Sealant is a top-quality, elastomeric acrylic patching compound that not only repairs your existing roof leaks, but can also help prevent them in the future.

This specially formulated sealant is perfect for use before applying an acrylic reflective coating, which provides additional protection for your roof. 

This roof sealant offers exceptional durability and can withstand different weather conditions without cracking, crazing, or losing its supreme adhesion. When applied correctly to a clean, smooth, and structurally sound roofing surface, it provides a long-lasting and effective seal that ensures your roof remains leak-free. With Henry® 289 White Roof Sealant, you can be confident that your roof will stay protected from the elements for years to come.


The cost of this roof sealant varies depending on the size of the product. A 10.1-ounce tube can cost around $12, while a one-gallon container can cost up to $139. Prices may vary depending on the supplier and location.


Henry is a reputable brand that has good standing in the industry. This roof sealant is quite effective and can offer your property good protection. It has favorable responses on Amazon and Lowe’s with 86% of homeowners who have purchased this product recommending it, according to HomeAdvisor. 

#5 Flex Seal Liquid® by Flex Seal

Flex Seal Liquid
Flex Seal Liquid

If you are looking for an effective roof sealant that you can use for multiple purposes, then Flex Seal Liquid will not disappoint. Whether you want to repair your roof leaks or protect your chimney or gutters, this sealant can help you.  

Its advanced formula makes it highly resistant to mildew, chemicals, and UV rays, ensuring long-lasting durability and performance. This reliable sealant is available in black, white, clear, and gray, providing options to match different roofing materials and styles.

As its packaging advertises, this product is also quite versatile. That is, you can apply it on several roofing surfaces such as concrete, metal, asphalt, and even other surfaces made from glass or stone. 


The product is available in pints, quarts, gallons, and a MAX size that ranges in price from $18-$240, depending on your needs. 


This roof sealant has a rating of 4.4-star rating. Customers have praised its UV resistance and ability to adhere well to a roof. However, this may not be the best option when it comes to sealing roofing membranes. 

#6 PL® Roof & Flashing Sealant by Loctite®

Roof & Flashing Sealant by Loctite
Roof & Flashing Sealant by Loctite

Loctite’s PL Roof & Flashing Polyurethane Sealant is a top-quality, professional-grade sealant designed to form weatherproof seals for gaps and joints on roofs and chimneys. Its premium quality formula protects your roof and metal flashing against water and weather damage, ensuring your roof stays leak-free for years to come. 

Not only does it withstand extreme weather, but it is also resistant to harsh UV rays and ozone, ensuring a long-lasting and durable seal. Developed with a durable polyurethane formula, this sealant has a 25% movement capability, allowing for shifts in building materials without compromising the seal.

Additionally, the Loctite PL Roof & Flashing Polyurethane Sealant is a low VOC formula that meets strict federal and state guidelines, ensuring that it is safe for both the environment and the user.


This product is most commonly available in a tube of 10 ounces, costing around $8-$12 depending on where you purchase it. A pack containing four tubes is also available for around $35-$40. 


This is not only the best roof sealant for leaks but is the most sought-after roofing caulk when protecting your roof’s flashing.  It has a rating of 4.5 stars on Amazon. 

#7 Color Sealant by Liquid Rubber 

Liquid Rubber’s Color Sealant is an exceptional sealant specifically designed for metal roofs, although it is also highly effective for flat roofs and foundation applications. Its unique formula ensures a final roofing membrane with over 100% elongation, providing unparalleled protection against adhesion failure. This remarkable characteristic allows the sealant to withstand the stresses of temperature changes, structural movements, and environmental conditions. Additionally, the versatility of Liquid Rubber’s sealant is further enhanced by its availability in seven different colors. This wide range of color options offers flexibility in roof design, allowing users to choose a shade that complements their building’s aesthetics while enjoying the sealant’s exceptional performance.


Liquid Rubber’s Color Sealant comes in two convenient options to cater to different project sizes. The first is available in a gallon size, priced at $84.  For larger projects that require more coverage, there is a bigger 5-gallon option available at around $280


Since this product is made by Liquid Rubber, it has also garnered positive reviews with a rating of 4.5 stars on Amazon. 

Five Factors To Consider Before Choosing A Roof Sealant

In the above section, we saw some of the best roof sealants for leaks and other forms of damage. But to decide which one will suit your needs the best, it is important to consider a few factors to ensure you make the right choice for your specific needs.

#1 Understanding The Products

It’s essential to understand that different types of roof sealants are available on the market, including liquid rubber, polyurethane, acrylic, and silicone. Each type of sealant has unique properties and is designed for specific applications. Researching the pros and cons of each material is important before choosing the right one for your roof.

#2 Compatible With Your Roof 

Ensuring that the sealant is compatible with your roofing material is crucial. Different types of roofing materials, such as asphalt shingles, tile, and metal, require different sealants. Before purchasing a sealant, check the manufacturer’s instructions to ensure it’s compatible with your roofing material.

#3 Ease Of Use

Consider ease of application and cleanup. Some sealants require specialized equipment or professional installation, while others are designed for DIY application. Make sure you choose a sealant that fits your level of experience and equipment availability, and check that the cleanup will be easy and straightforward.

#4 Durability & Weather Resistance

Durability and weather resistance are important factors to consider. You want a sealant that can withstand extreme temperatures, UV rays, rain, and snow without losing effectiveness or deteriorating over time.

#5 Your Budget 

Finally, the cost is always a factor to consider. While it’s important to focus on quality, you also want to choose a sealant that fits within your budget. Consider the cost per square foot and compare prices between different products to ensure you get the best value.

Best Roof Sealant Installation In Tulsa, OK 

Roof sealants are essential to any roof repair or maintenance plan. Whether you’re dealing with a minor leak or a major issue, using the right sealant can make all the difference in protecting your home from water damage and other environmental factors.

If you’re still unsure about which sealant to choose or don’t feel confident sealing your roof yourself, we recommend consulting our experienced team at A. Fricker Roofing & Waterproofing. We are a premier roofing company serving Tulsa and the surrounding areas of Oklahoma. Whether you require a roof repair or complete replacement, you can trust us. 

Invest in a high-quality roof sealant and enjoy the peace of mind that comes with a secure and protected home. Contact us today at (918) 402-7167 to schedule an appointment with one of our contractors.